Type Definition rustc_middle::ty::PolyExistentialTraitRef
source · pub type PolyExistentialTraitRef<'tcx> = Binder<'tcx, ExistentialTraitRef<'tcx>>;
Implementations§
source§impl<'tcx> PolyExistentialTraitRef<'tcx>
impl<'tcx> PolyExistentialTraitRef<'tcx>
pub fn def_id(&self) -> DefId
sourcepub fn with_self_ty(
&self,
tcx: TyCtxt<'tcx>,
self_ty: Ty<'tcx>
) -> PolyTraitRef<'tcx>
pub fn with_self_ty(
&self,
tcx: TyCtxt<'tcx>,
self_ty: Ty<'tcx>
) -> PolyTraitRef<'tcx>
Object types don’t have a self type specified. Therefore, when
we convert the principal trait-ref into a normal trait-ref,
you must give some self type. A common choice is mk_err()
or some placeholder type.
Trait Implementations§
source§impl<'tcx> Key for PolyExistentialTraitRef<'tcx>
impl<'tcx> Key for PolyExistentialTraitRef<'tcx>
source§fn query_crate_is_local(&self) -> bool
fn query_crate_is_local(&self) -> bool
Given an instance of this key, what crate is it referring to?
This is used to find the provider. Read more
source§fn default_span(&self, tcx: TyCtxt<'_>) -> Span
fn default_span(&self, tcx: TyCtxt<'_>) -> Span
In the event that a cycle occurs, if no explicit span has been
given for a query with key
self
, what span should we use? Read moretype CacheSelector = DefaultCacheSelector<Self>
source§fn key_as_def_id(&self) -> Option<DefId>
fn key_as_def_id(&self) -> Option<DefId>
fn ty_adt_id(&self) -> Option<DefId>
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 24 bytes